More about Circuit (737)

1-07-2010 | Digital decoders in model locomotives usually have two outputs for lighting functions. One switches the front lights for forward travel, and...

1-07-2010 | The Zoom H2 is a popular portable audio recorder. This recorder can record four tracks simultaneously, but unfortunately this only applies t...

1-07-2010 | The DTMF encoder circuit shown here is based on the HT9200B tone generator device produced by Holtek and distributed by Futurlec among other...

1-07-2010 | The indicator described here is specifically designed for adjusting the dynamic limiter described elsewhere in this edition and checking whe...

1-07-2010 | In the decoder designed for the DTMF Link project a Holtek HT9170B does the main job. The natural counterpart of the HT9200B used in the ass...

1-07-2010 | Pictures are worth a thousand words, so this will be the shortest ever article for an electronics magazine. Recently our overweight cat deci...

1-07-2010 | When you step out of your brightly-lit house into the darkness, it takes a while for your vision to adjust. A solution to this problem is th...

1-07-2010 | Putting professional-looking legends on front panels is a problem for many electronicists. Transparent plastic films ought to work but the h...

1-07-2010 | This RJ-45 cable tester automatically checks cable continuity and tests the connection configuration. Each of the eight connections is check...

1-07-2010 | The author ‘just wanted to do a bit of microcontroller programming’. However, the project rapidly grew into this impressive and visually att...